78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
#pragma once
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#include <FastLED.h>
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#include "./Geometry.h"
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#include <functional>
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class Display;
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/**
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* A high performance and hardware-independent rendering surface which
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* represents a full 2d display ranging from (0,0) to (255, 255), that may be
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* rotated.
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*
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* Simple brushes and complex shaders may be applied to a Surface using
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* @paintWith and @paintShader. The Surface will only execute each shader or
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* brush once for each physical pixel in the display, allowing you to design
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* display-independent graphics.
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*/
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class Surface {
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public:
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Surface(Display* dpy, const VirtualCoordinates& start, const VirtualCoordinates& end);
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Surface(Display* dpy, const VirtualCoordinates& start, const VirtualCoordinates& end, uint8_t rotation);
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/**
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* Sets the entire surface to one solid color
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*/
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Surface& operator=(const CRGB& color);
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/**
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* Adds the given color to every pixel on the surface
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*/
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Surface& operator+=(const CRGB& color);
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void blend(const CRGB& color, uint8_t pct);
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/**
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* OR operation that applies the given color to every pixel on the surface
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*/
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template<typename T>
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Surface& operator|=(const T& val) {
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paintWith([&](CRGB& pixel) {
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pixel |= val;
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});
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return *this;
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}
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/**
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* A lambda function that maps coordinates to colors.
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*/
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using Shader = std::function<void(CRGB&, const VirtualCoordinates& virtPos, const PhysicalCoordinates& realPos, const VirtualCoordinates& surfacePos)>;
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/**
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* A simple lambda that is called for every pixel in a surface. Commonly
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* used for solid fills; if you want to map pixel coordinates to colors or
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* textures, you probably want to use a Shader instead.
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*/
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using BrushFunc = std::function<void(CRGB&)>;
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/**
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* Applies the given BrushFunc to every physical pixel in the surface
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*/
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void paintWith(BrushFunc func);
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/**
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* Applies the given Shader to every physical pixel in the surface
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*/
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void paintShader(Shader shader);
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const PhysicalCoordinates start;
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const PhysicalCoordinates end;
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const VirtualCoordinates virtStart;
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const VirtualCoordinates virtEnd;
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private:
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Display* m_display;
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uint8_t m_rotation = 0;
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};
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